Long time campaign is really effective since we could not able to see a casino would able to make their campaign last long if this is not giving them a positive result. But before they make that to happen they usually earn a lot of profit first that's why they afford to sustain their campaign for long time since they became more successful for lots of activities they have done. But I don't think their exposure will remain forever since once a person will change his signature everything will be changed. That's why if they want to launch a campaign they should aim for long term so that a good result will be earned and they should not think that everything is fine since remember that there's a lot of casino here so they need continuous or consistent exposure so people could notice that their casino exist.
You can not forget that we do have a lot of long lasting campaigns so it will be hard for Betfury to stand out by doing the same. They did some campaigns in the beginning but were probably not fully satisfied with the results.
@iv4, haven't checked out their Telegram wheel, really dislike Telegram and rarely use it.
I was checking few casino sites, and they are doing good stuff for their customers which are helping them and also increasing their wagering which is most important for them now having signature campaign is not enough, but few are having good benefits as they are giving payments into casino account which is also helping them.